Valve.



A.0.RUTZ.

VALVE.

APPLICATION FILED MAR.3| 1915.

Patented May 22,1917.

VIII/g Y UNITED STATES PATENT OFFICE.

ARNOLD O. BUTZ, 0F MILWAUKEE, WISCONSIN.

VALVE.

To all whom it may concern;

Be it known that-I, ARNOLD 0. Run, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Valves,

tion is adapted to be attached to a flash igniter for gas stoves.

Specific objects of my invention are to provide a construction of valve whereby the spring for controlling the push button valve member, in one direction, is isolated from the gaseous fluid, to thus protect said spring whereby its life is materially increased, owing to the fact that in practice it has been found where springs were directly subjected to the chemical action of gases they quickly deteriorate. I

Another object of my invention is to provide a partitioned sleeve for the valve member and a packing that will automatically maintain its efficiency, due to the construction whereby the spring employed will exert pressure in one direction upon the packing and in its opposite direction upon the stem of the valve, whereby said valve is closed.

Thus the spring pressure upon the packing gasket is varied, depending ,upon movement of the valve stem.

Still another object of my invention is to provide a simple adjustable collar, in connection with the upper end of the sleeve member which collar is engaged by a valve button to limit the opening movement of the valve member, relative to its seat. This valve can be adjusted for feeding the natural or artificial gas with equal efliciency.

With the above objects inview the invention consists in certain peculiarities of construction and combination of parts as set forth hereinafter with reference to the accompanying drawings and subsequent claim In the drawings Figure 1 represents a sectional elevation of a valve embodying the features of my invention, the same being shown in connection with an igniter torch for lighting a Specification of Letters Patent;

sects the outlet duct'B. tlon between the bottom portion of the well Patented May 22, 1917.

Application filed March 3, 1915. Serial No. 11,931.

series of gas burners grouped thereabout, the valve being in section as'indicated by line 1-1 of Fig.2.

Fig. 2 a detailed cross section of the valve, the section being indicated by line 22 of Fig. 1. p

. Referring by characters to the drawings 1 represents a valve casing having a centrally disposed well 2 formed therein, the walls of which well are threaded for a portion of their depth, an inlet duct 3 communicates with the bottom portion of the well and an outlet duct 3' communicates with the upper portion of the well as shown, which outlet duct also communicates with a supply pipe 4 that delivers gas to a tip 4', the same being incased within a firing dome 5. The firing dome is provided with radial apertures 5 through which jets of flame are discharged from the tip to selected gas burners of a group not shown. It should be understood that the torch mechanism shown in connection with the valve forms no part of my present invention but is simply illustrated to more clearly demonstrate the application of the valve for this particular purpose.

The bottom ofthe well 2. has leading therefrom a bypass duct 7 which duct as best shown inFig. 2 emerges into an enlarged channel 7 that tangentially inter- Thus communicais maintained in connection with the outlet duct 3, whereby a constant diminutive volume of gas is supplied to the tip 4' at all times. The volume of this constant supply of gas is controlled by a pin-valve memher 8 which member is provided with a shank in threaded union with the mouth of the channel 7. This plug valve can thus be adjusted back and forth to regulate the amount of flow from the by-pass duct 7 to the channel 7' as best shown in Fig. 2. The well of the valve casing is arranged to receive the threaded head 9 of a sleeve 10. The sleeve is divided by a partition wall 10 and between the partition wall and head portion of said sleeve a reduced neck is formed having vent apertures 11. Head 9 terminates with an open mouth 12 which mouth is adapted to be closed by a valve 13. The valve is carried by a stem 13' which stem extends upwardly through an aperture formed in the partition wall 10 and into a pre-determinately cup 14 that is formed above the partition, said cup being also extended above the valve casing.

As shown in Fig. 1 of the drawings the face of the partition wall 10', constituting the bottom of the cup, is beveled downwardlytoward the center of the sleeve to form a seat for the ductile gasket 15, which gasket surrounds the valve stem.

The gasket is capped by a metallic washer 15 which washer serves as a seat for a coil spring 16, the same being disposed about the upper end of the valve stem. The coil spring is held under normal compression through engagement of its upper end with the neck 17 of a push button 17 ,'said push button being in threaded union with the valve stem.

The neck 17 as shown is also cored out, to form a housing for the upper portion of the coil spring and said neck is arranged to have telescopic engagement with the walls of the cup portion ofthe sleeve.

The outer upper end of the cup portion of the sleeve is threaded asshown for the reception of a correspondingly threaded stop-collar 18. By this arrangement the collar can be adjusted up or down to form an engaging stop for the valve push button 17 whereby opening movement of the valve may be pre-determinately regulated. This adjustable feature is an important element of my invention for the reason that the valve so equipped can be adjusted and set for supplying the necessary volume of either natural or artificial gas, the set being arranged with reference to the nature of the gas to which the valve is applied for control.

From the foregoing description it will be seen that when the valve is closed a constant small supply of gas is caused to travel through the valve casing by means of the bypass duct 7 to the point of consumption. This small flame of gas is designed to supply a series of minute torch flames at the burner tip 4. When it is desired to ignite any one or all of the series of gas burners, grouped about the igniter head, the push button 17 is depressed in opposition to the force of the coil spring 16, whereby the valve 13 is moved from its seat about the mouth 12 of the sleeve. Thus a large volumecause the small torch flames to be flashed out through the apertures 5 of the dome 5. It will also be observed that with each depression of the valve its movement is limited by the stop-collar 18 and the force of the spring in this depression, will be exerted upon the packing gasket whereby it is forced tightly against the adjacent surface of the valve stem, to surely maintain a tight joint at this point and when pressure is relieved from the push button, the momentary relaxation of the spring pressure, will to a certain extent, remove strain upon the packing, whereby its pressure is relaxed to effect a slight -movement of said packing. This movement also serves to maintain a perfectly packed joint which is essential to the valve as it is absolutely necessary to prevent leakage of gas through the sleeve and the said packed joint also insures perfect isolation of the spring from the influence of the gaseous vapor at all times.

' I claim:

A valve of the class described comprising a body provided with a uniformly cylindrical well bore and further provided with ports communicating with said well bore at points spaced longitudinally of the bore, a valve sleeve engaged intothe bore and terminating short of the inner port and provided in its periphery with an annular recess registering with the other port and further provided with openings at said recess, the sleeve being reduced in bore outwardly of the ports, a valve stem movable through said reduced bore portion, and a head on the stem coacting with the inner end portion of the sleeve.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of isoonsin, in the presence of a witness.

Witness.

M. E. DOWNEY. 

